Squidarellas™ - umbrellas which change colour when it rains!

One of my friends visited London over the weekend and after returning from Spitalfields Market out east, regaled me with tales of an amazing umbrella which featured the London skyline and which changed colour when exposed to water. I have since learned that I missed out on the launch of Squidarellas™, an "interactive umbrella design concept" by Viviane Jaeger and Emma-Jane Parkes of Squid London... and now I really, really, really want one (and yes, while the sun has switched on for the moment, how long it will last into the UK summer is debatable!) They are now being sold at at The Tate art galleries in London and Liverpool. Check out the video above to see how it works.